NEET2019PhysicsOscillationsActual
The radius of circle, the period of revolution, initial position and sense of revolution are indicated in the figure. y -projection of the radius vector of rotating particle P is
Options
- Ay t = - 3 cos 2 ⁡ π t , where y in m
- By t = 4 sin ⁡ π t 2 , where y in m
- Cy t = 3 cos ⁡ 3 π t 2 , where y in m
- Dy t = 3 cos ⁡ π t 2 , where y in m
Correct answer
D. y t = 3 cos ⁡ π t 2 , where y in m
Step-by-step solution
T = 4 ω = 2 π 4 = π 2 A = 3   m At t = 0 , y = 3   m ∴   y = 3 cos π 2 t